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  4. (Current) Netty Freelancers
  • $85 hourly

    • 5.0/5
    • (13 jobs)
    Hi! Nice to meet you online! I enjoy writing code, solving technical problems, interacting with people, and helping my clients succeed. My skills: 1. Mobile app development (iOS - SwiftUI/Swift/Objective-C/C++, Android - Kotlin/Java/NDK, Realm) 2. Web app development (Full Stack, Angular, Vue, Python, Java, RDBMS, NoSQL) 3. Desktop app development (Java, JavaFX, cross-platform installers) 4. Computer Vision, OCR, NLP, Deep Learning, and AI (Python, OpenCV, Tesseract, TensorFlow) 5. Google Cloud computing, GAE, AWS (SAM, Elastic Beanstalk, Lambda, API, RDS)
    vsuc_fltilesrefresh_TrophyIcon Netty
    Computer Vision
    Docker
    PostgreSQL
    Google Cloud Platform
    Mobile App Development
    iOS Development
    Swift
    Java
    OpenCV
    Tesseract OCR
    TensorFlow
    Objective-C
    Android NDK
    Kotlin
    JavaFX
  • $50 hourly

    • 5.0/5
    • (48 jobs)
    10 yrs of experience, will develop a production-ready SaaS application for you from A to Z: ✅ login and registration flow ✅ business flow/rules using OOP, SOLID, KISS, GRASP principles ✅ booking/appointment functionality if needed ✅ integrate with payment systems such as Stripe and Paypal ✅ fetch data from 3rd party services, REST api, if needed ✅ integrate your SaaS with ChatGpt or any other AI system ✅ an admin panel to manage users, payments, etc ✅ test the code using unit tests, integration tests and e2e tests to avoid bugs ✅ deploy the app to AWS, Azure or on-prem Message me to get a FREE consultation about your product idea! p.s. I did SaaS for such domains as: Ed Tech, AI, Health Care Other domains I worked with: Airline, Transportation, Real Estate, Smart Home (IoT), IT Security, Banking ----------------------------------------------------------------------------------------------- Below are technologies are for Upwork search engine Architectures: - Microservice - Monolith - SOA (Service Oriented Architecture) - Event Driven - Serverless - Event Sourcing and CQRS Programming languages: - Java 6, 7, 8, 11, 15, 17, JavaScript, TypeScript Frontend: - ReactJs, Angular, VueJs, Jquery Protocols/connectivity: - HTTP, HTTPs, FTP, SSH - REST, SOAP - RabbitMQ, Kafka, ActiveMQ - AWS SNS, AWS SQS, AWS Kinesis, AWS MSK - WebSockets Authentication/Security: - JWT, OAuth2 - Spring Security - AWS Cognito - Keycloak 21.0 - auth0 - social logins (Facebook, Google) Web Frameworks: - NestJS, NextJS, Node JS - Spring Boot (REST API, MVC, Data Jpa, Security, etc) - Quarkus - Google Guice - Java EE (EJB, JPA, etc) ORMs: - Hibernate - iBatis - Spring Data Jpa - Spring Data Mongo - Spring Data Neo4j - JDBC template Databases: - MySQL 5.7, 8.0 - MSSQL - Postgresql 14 - Oracle - Sybase - Mongodb - Neo4j - Redis Clouds: - AWS: EC2, ECS, S3, Lambda, Kinesis, MSK, EventBridge, SQS, SNS, CloudWatch, CloudFormation, RDS, Aurora, Cognito - Azure - GCP - Heroku CI/CD: - Jenkins - TeamCity - Github Actions - AWS Codebuild - SonarQube Devops: - Docker - Docker Compose - Kubernetes (k8s) - Linux Others: - Chatwoot
    vsuc_fltilesrefresh_TrophyIcon Netty
    ChatGPT API Integration
    JavaScript
    NodeJS Framework
    MySQL
    SOAP
    PostgreSQL
    Web Development
    RabbitMQ
    RESTful API
    Apache Kafka
    Spring Boot
    SQL
    Node.js
    Java
    Amazon Web Services
  • $15 hourly

    • 4.8/5
    • (48 jobs)
    As a seasoned full-stack developer with over 14 years of experience, I've worked with smartData Enterprises, a top-rated provider on Upwork, to develop Enterprise Software solutions for clients across various industries. My expertise extends from requirement analysis, design, development, implementation, and testing, to support and maintenance. I'm proficient in project management tools such as Basecamp, Slack, and Ace, as well as source code management systems like GitHub, SVN, and TFS. I'm also experienced in communicating via Upwork (Message, Audio & Video). My services include mobile app development, website development, mobile backend development, graphic design, UI/UX implementation, and consulting in mobile app development. I specialize in startup development and can provide quick turnaround times by using reusable code. Full stack development ✔ On-demand service apps ✔ Warehouse management system ✔ Interactive Self Kiosk System Development ✔ Packaging, Labelling, Shipments management - In-bound / Out bound ✔ SaaS platforms ✔ Event management SaaS-based platforms ✔ CRM platforms ✔ Uber-like apps ✔ Calling (VOIP, SIP, Twilio, Asterisk) software ✔ Food delivery websites and apps ✔ Restaurant websites and apps ✔ Travel websites and apps ✔ Social network websites and apps ✔ Upwork-like service marketplace websites and apps. ✔ Crowdfunding websites and apps ✔ Service provider finder apps ✔ Tracking apps with GPS services ✔ Product selling websites and apps ✔ Event ticket-selling websites ✔ Beacon development ✔ E-commerce websites and apps ✔ Dating websites and apps ✔ Rideshare apps ✔ Video streaming apps Let me help you bring your ideas to life !
    vsuc_fltilesrefresh_TrophyIcon Netty
    API
    SQL Programming
    Database Architecture
    Web Application
    Web Development
    App Development
    API Integration
    Mobile App Development
    Android App Development
    React
    React Native
    MongoDB
    JavaScript
    iOS
    Android
    Node.js
  • $25 hourly

    • 4.9/5
    • (12 jobs)
    I'm a developer who is having 10+ experience with writing SOAP/REST web services in java, spring framework and hibernate. Mainly i have been working in telco field . I have been a team member of the projects that implemented SMS, MMS, WAPPUSH and Payment services for clients in various countries. I have experience with integrating REST services with swagger and keycloak authentication system. And also i have experience in writing micro services using spring boot. I have experience with writing Golang APIs following middleware design pattern and oracle database integration using XORM library. I would love to take any challenge to fulfill client's requirements.
    vsuc_fltilesrefresh_TrophyIcon Netty
    Swagger
    Core Java
    Apache Kafka
    User Authentication
    Spring Boot
    Golang
    Hibernate
    Git
    Spring Framework
  • $120 hourly

    • 4.9/5
    • (12 jobs)
    Greetings! Since you’re visiting my profile, you’re probably looking for a reliable long-term partner to provide you with high-quality IT services. I am a CTO at Extrawest: the agency that might become that partner. Let’s omit vague descriptions and switch to key facts that would help you understand if we meet your requirements. WHAT WE CAN DO FOR YOU - Front-End Web Development: React, Vue.js, Angular 7/8. - Back-End Web Development: Node.js, PHP (Laravel, Yii2), Django, .NET Core. - Mobile Development: Android, iOS, Cross-platform (Flutter). - WordPress development: Websites, Themes, Plugins. - Desktop Development: C#, C++. - Data Scraping: Python, Scrapy, Pandas. - QA: Manual, Automation. - UI/UX Design, Web Design, Banner/Logo Design. - PPC, SEM. - Project Management. DOMAIN INDUSTRIES WE’RE EXPERIENCED IN: Electric Vehicles Charging, eCommerce, FinTech, EdTech, Medical Insurance & Healthcare. SOME ILLUSTRATIVE NUMBERS AND FACTS - Upwork Top-Rated agency. - 100+ IT specialists on-site. - Customer geography: 15 countries globally. - 13 years of IT outsourcing and outstaffing experience. - 30+ technologies in our tech stack. Does it coincide with your expectations of the agency you want to work with? If yes, let’s schedule a call and start turning your ideas into reality.
    vsuc_fltilesrefresh_TrophyIcon Netty
    Ansible
    Scrapy
    Java
    Internet Marketing
    Windows Administration
    Embedded Application
    AWS Systems Manager
    Solution Architecture Consultation
    Linux System Administration
    DigitalOcean
    Python
  • $20 hourly

    • 5.0/5
    • (1 job)
    Qualified Senior software engineer with 8 years of experience. Demonstrated success in streamlining processes and boosting efficiency by leveraging strong design and problem-solving abilities. Detail-oriented and conscientious about code quality and craftsmanship
    vsuc_fltilesrefresh_TrophyIcon Netty
    TypeScript
    Kubernetes
    Jenkins
    Docker
    React
    Vue.js
    Spring Framework
    Vert.x
    Kotlin
    Java
  • $89 hourly

    • 5.0/5
    • (32 jobs)
    Cloud DevOps Engineer and System Administrator with more than 14 years of experience working in IT. I am specialized in cloud platforms such as AWS (Most experienced), GCP, Azure and DigitalOCean, especially using tools like Docker, Kubernetes, Terraform, Ansible, always focused on creating a very secure and highly available environment with great performance, monitoring, and cost optimization. I'm also specialized in Linux platforms (Red Hat, CentOS, CoreOS, Ubuntu) and Windows as well. Deep Experience with Linux, Windows, Apache, Nginx, MYSQL and MSSQL administration AWS solid skills in EC2, RDS, VPC, VPN, S3, Cloudfront, Workspace, SES, Route53, ECS, Elastic Beanstalk, etc Deep experience with AWS Devops tools like AWS Code Commit, AWS Code Deploy and AWS Code Pipeline Deep experience with open source Devops tools like Github, Docker, Jenkins, Gitlab and Kubernetes. Deep experience with infrastructure tools like Terraform Deep experience with Migration tools from on premise/cloud provider to another cloud provider. Good Experience With scripting languages like bash and python Good Knowledge of Networking (CCNA Course), Cyber Security Concepts, Cloud Computing and Virtualization. SSL Configuration Working with DevOps in the past 8 years, with focus on automation tools for cloud environments I've specialized myself in: ✅ CI/CD ✅ Docker ✅ Jenkins ✅ DevSecOps ✅ Amazon Web Services (AWS): EC2, ECS, S3, IAM, Lambda, Route 53, CloudFront, CloudFormation, RDS, etc; ✅ Automated Tests ✅ Architecture Solutions ✅ Terraform ✅ Kubernetes ✅ Ansible ✅ Apache, Tomcat and Nginx ✅ Git/SVN ✅ Linux (Ubuntu/RedHat/CentOS) ✅ Bash Script ✅ Powershell ✅ SQL/ NoSQL ✅ Programming Languages (Python, Java, PHP, NodeJS, Ruby) ✅ Expert Level ability with Server Administration in Linux & Windows environment, including designing a well architected framework for applications and infrastructure. ✅ Extensive Experience in Hybrid Migrations, replatforming or reArchitecting cloud solutions. ✅ Excellent in Devops integrating CICD to an Infrastructure build, deploy or operate with core IAAC skills(Terraform, Cloudformation, Ansible, cloud watch, Jenkins, etc.) 🌟 WHY ME ? 🌟 I stay Highly motivated, dedicated and results oriented ensuring client satisfaction & success delivered professionally. 🙋🏼‍♂️I am eager to work with you, to provide reliable, consistent, and High-Level solutions to design/development challenges. Please contact me, so we can discuss how we can work together to FULLY meet your Business Needs!
    vsuc_fltilesrefresh_TrophyIcon Netty
    Google Cloud Platform
    Golang
    API Integration
    API
    AWS CloudFormation
    Python
    PHP
    JavaScript
    Amazon ECS
    Laravel
    Azure DevOps
    DevOps Engineering
    DevOps
    Amazon Web Services
  • $70 hourly

    • 5.0/5
    • (15 jobs)
    Experienced and energetic Swiss software architect/senior engineer and AWS Certified Solutions Architect with a passion for designing and implementing innovative and state of the art systems in complex business environments. During my work in a Swiss private online bank I’ve taken the lead on and participated in complex projects with strict requirements such as event driven architecture in banking clients onboarding workflows, refactoring of authentication systems, translating business needs into architecture and apis from the design phase to the deployment and maintenance. My soft skills helped me organize and manage meetings with IT, businesses and other teams to improve our collaboration on projects, overall interactions and workflows. I also trained some newcomers to help them quickly understand our business and processes. My experience as an DevOps engineer allow me to see further than the typical developer world and to be independent in setting up, provisioning, templating, configuring, monitoring and maintaining infrastructure, middlewares and deployment and continuous workflows. On the front-end side I’m versed in React/Redux/RxJs to develop modern and reactive, simple and complex web applications. As a freelancer I worked with smaller companies to develop various systems such as a distributed caching engine with distributed rate limiting, a system to stress test different Java frameworks and Redis libraries and some frontend + backend systems to address specific companies needs in various languages using AWS Beanstalk, EC2, Fargate, ... I also have a keen interest and experience in new and interesting technologies and trends such as reactive programming, Kubernetes, algorithmic trading and cryptocurrencies/NFTs as my experience and personal/professional projects on Github demonstrate.
    vsuc_fltilesrefresh_TrophyIcon Netty
    SQL
    Solution Architecture
    Software Architecture & Design
    Amazon Web Services
    Test Automation
    Akka
    TOGAF
    Kubernetes
    Domain-Driven Design
    React
    Scala
    Java
    Reactive Programming
    Python
    API
  • $30 hourly

    • 4.9/5
    • (125 jobs)
    🏆 Upwork Top Rated Plus Developer 🏆 6+ years of experience in Java, Spring Boot, Kotlin, Python, Android 🏆 14,000+ Hours in Hourly Projects and more in Fixed Cost Projects 🏆 30+ Enterprise web applications deployed on cloud services 🏆 100+ Small POC applications delivered 🏆 100% Client Satisfaction & consistent best-quality delivery 🏆 Worked in FinTech, E-commerce, CRM, Cloud Integration, ETL, and Web API Integration 🏆 Self-motivated, detailed-oriented, punctual, and a fast learner 🏆 Strong troubleshooting/debugging skills 🏆 Help turn idea/concept into reality My expertise includes the following: ✔ Java Language and Frameworks: Java, Spring Boot, Spring Framework, JPA, Hibernate, Kotlin, Maven, Jetty ✔ Other Languages and Frameworks: JavaScript, Node, TypeScript, Python, Go ✔ Android SDK, React, Flutter, BT LE device integration, performance improvement ✔ SQL, NoSQL Databases: PostgreSQL, MySQL, Oracle, MongoDB, Redis ✔ IOT, AR/VR, Machine Learning ✔ REST API, GraphQL, Web Service, XML, JSON, HTML5, Reactjs, Bootstrap ✔ Cloud services like AWS, Google Cloud Platform, Azure, Heroku, Firebase ✔ Social Media Integration like Facebook, Twitter, and Linkedin ✔ Payment Gateway Stripe, Braintree, Paypal, Autorize.Net, Square ✔ Familiar with Asana, Basecamp, Git, SVN, Jira, Trello, Slack
    vsuc_fltilesrefresh_TrophyIcon Netty
    Backend Rest API
    Spring Cloud
    Ecommerce Website Development
    Amazon MWS
    Google Apps Script
    Kotlin
    Microservice
    Software Development
    Spring Security
    Python
    Amazon Web Services
    Hibernate
    Java
    Spring Framework
    Spring Boot
  • $40 hourly

    • 4.8/5
    • (67 jobs)
    🏆 Upwork Top Rated Plus 🎯 95% Job Success Score 💎 7 Years of Experience in Web Development 💥 60+ Jobs Completed ⌚ 2000+ Hours 💰 60k+ Earnings 💪 Strong Portfolio ⭐⭐⭐⭐⭐ 60+ Jobs With 5 Star Ratings I am an Expert Full Stack Developer with 10 Years of Experience with both Frontend & Backend Development. I have an excellent understanding of how technology can be used to align the requirement of both the business & the customer. Within the past several years, I have worked with other Individuals in a Team Environment, & worked solo as a Full-time Freelancer. With such a Diverse Background, I am well-versed in High-end Communication Skills, Excellent Business Practices & Self-motivated Principles for Success. I have developed various Websites for different Businesses like News, Blogs, Social Media, eCommerce, Custom Business Solutions, Taxi Booking, Travel, Video Streaming, Telemedicine, Healthcare Fitness, Food Delivery, Service Providers, Fintech, EWallet & many more. 👉 MY EXPERTISE & SKILLS: ✅ Frontend: React Native, React JS, Next JS, Nuxt JS, Angular JS, Vue JS, Redux, Hooks, Redux ToolKit, JavaScript, Bootstrap, HTML, JQuery, SASS, CSS, SCSS, Styled Components, Chakra UI, Material UI, Ant Design ✅ Backend: Node JS, Nest JS, Express JS, MYSQL, Python, SQLite, MongoDB & Sequelize ORM ✅ Database: MySQL, Aurora, PostgreSQL, MariaDB, SQL Server, MongoDB, Redis ✅ Third-Party APIs Integrations: ♠ Payment Gateway: Stripe, Open Pay, ChargeItPro, Quantum Payment, Authorize.net, ACH Works, PayPal, ComproPago, Expinet, Fatt Merchant, Oxo pay, Pay way ♠ Map: Google Map with marker, Google Geo API, Microsoft Bing API ♠ SMS: Twilio API, AWS SNS ♠ Search: AWS Elasticsearch API, Solr ✅ Cloud services: Firebase Realtime database, Crashlytics, Analytics, Cloud Firestore, Storage, Dynamic Links, Cloud functions, Authentication, AWS Amplify, AWS Lambda. ✅ I am well versed with, ♠ GIT (GitHub / GitLab / Bitbucket) / SVN etc. version control systems (branching workflow). ♠ Jira / CI/CD / Basecamp / Redmine / Asana / Trello / Flow / Scrumdo or any other project management tools. ♠ Jenkins / Amazon Code Deploy / Bamboo / Rsync etc. code deployment tools. ♠ cPanel / WHM / AWS Management / Digital Ocean / Google Cloud Service / Kubernetes / Azure / Linux server management. ✅ REST APIs, OAuth ✅ Support & Maintenance 👉 MY PRINCIPLE: ⭐ I can use any Task Management Software the Client Prefers ⭐ Ready to work for 40-50 Hours Per Week. ⭐ Daily Update on your Project. ⭐ Meeting Deadline Efficiently Let's get in touch & see if I am a good match for your project. Warm Regards,
    vsuc_fltilesrefresh_TrophyIcon Netty
    Azure DevOps
    Responsive Design
    Web Development
    Node.js
    SQLite
    React
    WordPress
    HTML5
    UI/UX Prototyping
    Database Development
    React Bootstrap
    Microsoft Azure
    Python
    Laravel
    PHP
    CSS 3
    Django
    Front-End Development
    Firebase
    React Native
    Bootstrap
  • $30 hourly

    • 5.0/5
    • (4 jobs)
    With over a decade of seasoned expertise, I am a proficient Senior Developer specializing in Back-End, Front-End, and Android Development. My journey has been marked by successful project completions, adeptly managing a contract valued at 200+ million annually, and seamlessly handling concurrent usage by 100,000+ users. Adept in SCRUM methodologies and SDLC practices, I bring a track record of ensuring system functionality and delivering top-tier solutions. My technical prowess is underlined by a history of crafting high-quality solutions, bolstered by strong collaboration skills and a knack for solving intricate problems. I excel as both a mentor and a collaborator, fostering effective teamwork and learning environments. Fluent in English, Mandarin, and Cantonese, I possess a diverse skill set that encompasses equipment management, ERP, CRM, e-commerce, social media, and video monitoring systems. My portfolio centers on projects tailored for corporations and governments, often built upon the robust SaaS model. At the core of my approach lies a dedication to pragmatic business solutions. Leveraging a plethora of matured plugins, components, and third-party integrations, I tackle commonplace website and application requisites. Your interview invitation would be most welcome, as I am eager to discuss how I can contribute to your team. I await the opportunity to connect and explore synergies. Skills: Technology: Java, Core Java Object Oriented and multi-threaded Programming, J2EE, JDBC, JMS/MQ Series, Android, Vuejs, Angularjs, BootstrapUI, ElementUI, AntdUI, Javascript, JSP, Servlets, XML, HTML, PHP, Python, Cas, Restful api, Graphql, Uniapp, Wechat, Alipay, Zabbix, Tencent cloud, Alibaba cloud, Blockchain, Live Stream, Activiti(workflow). Languages: Java, SQL, PL/SQL, Html, Javascript, PHP, Python, C/C++/C#/Object-C/ (academic experience only) Application Frameworks: Spring (IOC, ORM, DAO, AOP), MVC (Struts, SpringMVC, ThinkPHP5), Spring Boot Microservices: Spring Cloud, netflix eureka, alibaba nacos Data Access Frameworks: Hibernate, Mybatis, Mybatis Plus, Spring JPA SOA: SOAP/RESTFul Web Services Testing Frameworks: JUnit, Mokito Database: SQL Server, Oracle, Mysql, Postgresql, Tdsql(distributed database), Trustsql(blockchain), Kingbase Nosql: Redis, Ehcache, Memcached, Mongodb, Elasticsearch Message queue: Rabbitmq, Rocketmq Operating Systems: Linux, Windows 2008R2, Windows 2012R2 Code Repositories: Cvs, Svn, Git Build/Deployment Tools: Ant, Maven, Gradle, Jenkins, Aliyun EDAS, K8S Container: docker, podman Development Tools: Eclipse, Myeclipse, IDEA, Android Studio, Navicat, Oracle PL/SQL Developer, Mysql Workbench, SQL Server Management Studio, SQLite Expert Test Tools: Apache JMeter, Postman, Fiddler, Wireshark, MemoryAnalyzer Application Server: Apache Tomcat, JBoss, Apusic AAS Methodologies: SCRUM, Waterfall Business Modelling: UML, Enterprise Architect, Powerdesigner
    vsuc_fltilesrefresh_TrophyIcon Netty
    GraphQL
    Spring Cloud
    Spring Boot
    WeChat
    Alibaba Cloud
    RabbitMQ
    Microsoft SQL Server
    MySQL
    Oracle
    Redis
    Linux
    PHP
    JavaScript
    Android
    Java
  • $30 hourly

    • 5.0/5
    • (8 jobs)
    Senior Full Stack Engineer with more than 5 years of experience. CS Bachelor. Certified AWS Architect. Full cycle of Web application development: design, implementation, testing, deployment, support. I will help you develop low-cost, reliable, fault-tolerant and highly available cloud-based web application. Key technologies: * AWS: Lambda, EC2, ECS, DynamoDB, etc. * Java: Spring Framework, Hibernate, etc. * JavaScript: Webpack, React, Redux * DevOps: Docker, Kubernetes, Jenkins
    vsuc_fltilesrefresh_TrophyIcon Netty
    Microservice
    Spring Framework
    React
    DevOps
    JavaScript
    PostgreSQL
    Hibernate
    Java
    MongoDB
    Node.js
    Jenkins
    CI/CD
    Kubernetes
    Amazon Web Services
    Docker
  • $20 hourly

    • 5.0/5
    • (2 jobs)
    3+ years experience in Java back-end development with in-depth knowledge of Java, Spring, Reactor, Kafka, Keycloak, PostgreSQL/Elasticsearch/Redis. Proficient at finding solutions to increase efficiency of the product, time management, documentation and testing.
    vsuc_fltilesrefresh_TrophyIcon Netty
    RESTful API
    PostgreSQL
    MongoDB
    Elasticsearch
    JUnit
    Apache Kafka
    Spring Security
    Spring Boot
    Java EE
    Java
  • $40 hourly

    • 4.9/5
    • (7 jobs)
    17+ years of experience in Java software development. Fullstack developer with experience in Angular, ReactJS Dev-ops skills: CICD, servers' maintenance and monitoring Cloud skills: K8S, Docker, OpenShift, AWS, GCP
    vsuc_fltilesrefresh_TrophyIcon Netty
    PostgreSQL Programming
    Oracle WebLogic Server
    Apache Tomcat
    Jakarta Server Pages
    AngularJS
    J2EE
    Gradle
    Apache Maven
    Spring Framework
    Java
  • $150 hourly

    • 5.0/5
    • (5 jobs)
    linkedin: /in/erinmichaeljohnson 15+ years as a full stack software development engineer building consumer facing (think: webapps) and business facing (think: SaaS & SOA) [horizontally] scalable distributed software systems. Highly experienced in multiple cloud computing IaaS, PaaS, and DBaaS ecosystems (think: AWS, Google Cloud Platform, Heroku, mLab, etc). Startup Highlights: - co-founded SaaS startup which; took through venture funding and sale - 3rd engineer in a venture backed SaaS startup; during time there, went from $10K/mo to $2M/mo - 20-ish engineer in a venture backed, growth stage, SaaS company; sold to the world's largest e-learning company Enterprise Highlights: - engineering team lead [currently and] for the previous 6 years - leveraged big data, data mining and data science to build durable [non-commodity] feature sets across various industry verticals - on R&D's critical path, in various industries, for building highly secure and sensitive software
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    Database Design
    ExpressJS
    MongoDB
    SaaS
    Web Development
    Ecommerce Website Development
    Amazon Web Services
    Python
    Distributed Computing
    Cloud Computing
    PHP
    Java
    AngularJS
    Node.js
  • $30 hourly

    • 5.0/5
    • (8 jobs)
    You have an idea for your web application, or looking for an expert to maintain your current app. But, you don't have the time/resources/expertise to make it happen. Luckily, instead of trying to complete those complex tasks in-house, you can hire an expert (like me) to support your idea from the conceptual phase to maintenance. Now, you might be asking why should you hire me: Following a quick description can give you a glimpse of my expertise ✅ Add value to your business through building user-friendly interfaces (UI / UX) and high-performant backend ✅ Focused, efficient, and reliable ✅ Critical to problem-solving, delivery time, and work-quality I've been working in the IT industry for more than 8 years, and I own Bachelor's Degree in Software Engineering. I have a good grip on the following frameworks ✅ Node ✅ React ✅ Spring ✅ Angular ✅ VUE I've developed apps and websites using the above-mentioned frameworks. I have hands-on experience in configuring, developing, migrating, and optimizing apps/websites, as well as working with several plugins and widgets. Design and Development Plan: Phase 1 ⭐️ Wireframes of the application: It will clarify the requirements, features, and flow of the application and admin panel. Phase 2 ⭐️ UI / UX of the application and Admin Panel: We will create a dummy look and feel of the application and admin panel to give us a better picture of the whole system. Phase 3 ⭐️ Requirement Specification Documentation: All the requirements, including business requirements, functional requirements, and non-functional requirements, will be written down in the Requirement Specification document and shared with the client for approval. Phase 4 ⭐️ Application and Admin panel Development After completing the above three phases, our developers will start working on the project's development according to the UI/UX Designs and requirement documentation. The client will be able to see the progress of the application too per milestone. We will complete the development of web applications and the admin panel in milestones. Milestones will be delivered to the client on an agreed date and time (This will be agreed upon while signing the contract). Phase 5 (Optional) ⭐️ Application Maintenance Usually, after development clients ask for maintenance too to add new modules or upgrade existing ones. Love to work with me? Click on the little "Hire me" button and see your idea becoming reality!
    vsuc_fltilesrefresh_TrophyIcon Netty
    MEAN Stack
    MERN Stack
    NestJS
    Spring Cloud
    Full-Stack Development
    Web Development
    Web Application
    Nuxt.js
    Next.js
    React
    Angular
    Node.js
    Vue.js
    Spring Boot
    Java
  • $60 hourly

    • 4.2/5
    • (7 jobs)
    Kudratillo is a full stack developer with a solid experience on Android, iOS, Java, Spring, Netty, PostgreSQL, Angular, ActiveJ, Vert.x, reactive programming. Project experience: Messenger, Audio/Video calls, Listings, US RETS, MLS, Calculators, Personal Cabinet (services, balance), Detailed history of user activity, etc Kudratillo is a developer with 4 years of experience in backend development in Koltin/Java+Postgres and 6+ years of experience in Java software development. Kudratillo loves to write reactive backend services. Kudratillo also developed admin panels, messenger web apps in Angular and Typescript. Kudratillo recently wrote a backend in microservices architecture in Kotlin using young reactive and high-load framework ActiveJ and Vert.x. It makes use of RPC with byte level serialization other than JSON. Kudratillo also made other Kotlin projects. Kudratillo developed backend for a messenger like Telegram/WhatsApp in Java. It included features such as private, group chats and channels; sending file, photo, voice, video, location; search people and messages; push notifications. Project connection is built on top of websockets with custom byte-level serialization and encrypted using AES/DH key sharing. Kudratillo used Netty and Postgres in this project. Kudratillo also developed API backend for personal cabinet for customers of a cellular company. It also includes many features and challenges such as preparing customer's activity log for a period based on customer's order, dynamic properties of tariffs. Kudratillo have developed REST APIs using Java Spring 5 WebFlux with beautiful Swagger & Redoc documentations. Kudratillo mostly use PostgreSQL as database since it offers very powerful capabilities and yet is free. Kudratillo have experienced on making pl/pgsql and sql functions. Kudratillo have a knowledge of optimization, normalization, denormalization of databases. Kudratillo can deliver database from scratch. Experience: - Messenger App on iOS and its backend on Java with custom protocol to exchange data over WebSocket - Java Spring 5 WebFlux API backend for mobile app of personal cabinet of cellular and internet provider users - No-code website to create websites for US realtors (RETS, MLS) to sell houses (as a team member) - Ionic hybrid app for calendar like event management app - Android apps for internal use of a company: Task Management app, Rate Coworker app, Colleague Birthdays app - Informational app for Insurance Company which fetches data from server and saves locally. It also includes insurance calculators
    vsuc_fltilesrefresh_TrophyIcon Netty
    RESTful API
    API
    iOS Development
    Android App Development
    Reactive Programming
    Microservice
    Stripe API
    Database Architecture
    Database Design
    Kotlin
    Algorithms
    C++
    Spring Framework
    Java
  • $50 hourly

    • 5.0/5
    • (37 jobs)
    👉 WHO I AM +12 years of experience in the software development covering all phases of project development including implementation, business requirements analysis, architecture and design, module and component construction, deployment, testing and quality assurance. 👉 WHAT I KNOW • Programming Languages: Java, Kotlin, PHP, JavaScript, TypeScript, • Frameworks: Spring Boot (Mvc, Cloud, Data, Security, Batch and etc.), Symfony, Laravel, React, Angular, Vue.js, jQuery, Nest.js, Express.js, Yii, Zend Framework (Certified) • Specialization: Web Development, Back-end, Front-end, Blockchain, Cloud-native Applications, Serverless Applications, Microservices, RESTful API, Solution Architecture • Data: MySQL, PostgreSQL, SQLite, MongoDB, CouchDB, LevelDB, Redis, Memcached, Blockchain (Hyperledger Fabric), Cloud Storages (Azure Storage, S3) • ORM: Hibernate, Doctrine ORM, Eloquent, TypeORM, Propel • Messaging: RabbitMQ, Apache Kafka, Amazon SQS & SNS • Infrastructure: Kubernetes + Helm, Terraform, AWS CloudFormation, Istio (service mesh), Docker, Docker Compose • Cloud: Azure, AWS (Certified), DigitalOcean • Monitoring & CI/CD: GitHub Actions, AWS Elastic Beanstalk, AWS CloudWatch, GitHub, GitLab, Grafana, Loggly, Prometheus, SonarQube, CodeSniffer, Git, SVN • Management & Communication: Jira, Trello, Pivotal Tracker, Slack, Microsoft Teams, Figma, Confluence 👉 WHAT YOU GET You will get a reliable, self-motivated and open-minded partner for your business with years of experience behind his back.
    vsuc_fltilesrefresh_TrophyIcon Netty
    MongoDB
    Angular
    TypeScript
    Laravel
    Spring Framework
    Docker
    React
    Symfony
    MySQL
    NoSQL Database
    RESTful API
    JavaScript
    PHP
    Java
    Amazon Web Services
  • $25 hourly

    • 5.0/5
    • (4 jobs)
    Talanted java / scala software developer in-love with standalone and server - side applications developement. * My current experience includes 7+ years in the development of a broad variety of Enterprise-grade software products on the JVM platform. * I have good expertise in a wide range of main software product archetypes and architectures, including Micro-services, Serverless applications (FaaS), Monolith web applications and Desktop applications. * I have a deep knowledge of both Java and Scala software development stacks and their frameworks, understanding main development principles for them, including Functional/Reactive and Object-Oriented programming paradigms. * Client projects include Adidas, Empowered Systems, Divvy (Divvy Parking Pty Ltd), COOP (COOP retail), Transgourmet (Transgourmet Deutschland GmbH & Co. OHG), Migros (Migros Ltd), MeteoGroup.
    vsuc_fltilesrefresh_TrophyIcon Netty
    RESTful Architecture
    REST
    Core Java
    XML
    Kotlin
    NoSQL Database
    Spring Boot
    Algorithms
    Play Framework
    Spring Framework
    Java Persistence API
    SQL
    Scala
    Java
  • $30 hourly

    • 5.0/5
    • (9 jobs)
    I have always shown a growing willingness and been full of enthusiasm about science and technology. Specifically, I never stop practicing to enhance programming skills which play a pivotal role in my career. Until now, I have carried out a majority of projects, both individually and teamwork. There is one thing that I always keep in mind "To make something special you just have to believe it’s special". In a word, I can say I'm just a simple guy who loves coding and believes in making something great in the future.
    vsuc_fltilesrefresh_TrophyIcon Netty
    Apache Hadoop
    Apache Kafka
    Object-Relational Mapping
    Node.js
    Object-Oriented Programming
    React
    JavaScript
    MySQL Programming
    Golang
    Docker
    Java
    Kubernetes
    Python
    Python Script
    Apache Spark
  • $40 hourly

    • 3.6/5
    • (2 jobs)
    Talib Allauddin is a Full-Stack Developer having more than 10 years of development in Languages like PHP, Python, JavaScript, WordPress , Shopify , HTML , CSS , LARAVEL , CodeIgniter and others. I'm moved by technology and loves building a real-time system. Apart from being a tech enthusiast, ⬇️ MY SERVICES ✅ Web Development ✅ Frontend Development ✅ Backend Development ✅ HTML, CSS ✅ WordPress, Custom Solution ✅ Databases ✅ PHP, Laravel, CodeIgniter ✅ Python ✅ Shopify ✅ React JS, Node JS, Plugins ✅ API Development ✅ Payment Integrations Mobile App Development & Design : ✅ Flutter ✅ React Native ✅ Native Android App ✅ Native iOS App - 10+ years of experience. - Best price with 100% satisfaction. - Working 6 days: Support for 7 days a week
    vsuc_fltilesrefresh_TrophyIcon Netty
    CSS
    React
    React Native
    Node.js
    Next.js
    Ecommerce Website
    HTML5
    JavaScript
    WordPress
    Web Development
    Data Scraping
    MySQL
    Web Design
    Mobile App Development
    Front-End Development
  • $35 hourly

    • 5.0/5
    • (10 jobs)
    I have a Bachelor Degree in Information Technologies at Technical University of Moldova from Chisinau. I worked 2+ year as SDET and 5+ years as Java/Scala/Kotlin/Groovy Developer. I’ve done a lot of interesting and hard work on backend.
    vsuc_fltilesrefresh_TrophyIcon Netty
    TestNG
    Unit Testing
    NoSQL Database
    Spring Boot
    Spring Framework
    SQL
    Spring MVC
    JUnit
    Hibernate
    Spock
    Play Framework
    Software Architecture & Design
    Kotlin
    Java
    Apache Groovy
    Scala
  • $45 hourly

    • 5.0/5
    • (2 jobs)
    Hi, my name is Alex! I am a professional Java / Elixir / Erlang Developer with over 5 years of job experience in IT sphere. I am Expert in creating systems under high-load as well as with a great throughput and performance. My key technologies stack is: - Erlang / Elixir; - Java EE; - NoSQL (Mongo, Cassandra, Redis); - Docker. I have advanced knowledge in functional programming, performance optimization and Architecture design and implementation. I'm able to work as a single developer as well as a team player. But as for me, I prefer to work in a team where you can share experience, grow as a professional and improve the code. That’s why I joined to Extrawest team - fullstack Web, Mobile and Software development company. So if you are looking for a reliable, creative and experienced IT outsourcing team, you have come to the right place, as my team and I would be glad to become your long-term partner. Let's work together!
    vsuc_fltilesrefresh_TrophyIcon Netty
    Swing
    EclipseLink
    Phoenix
    MySQL
    Erlang
    Java
    Redis
    Golang
    Apache Cassandra
    MongoDB
    Elixir
  • $30 hourly

    • 5.0/5
    • (33 jobs)
    Hi, I’m Kokkhta, a top rated Upwork developer with 100% job success rate. I am a full-stack developer with over 15 years of experience in web development. I specialize in WordPress development, plugin creation and customization, theme creation and customization, Laravel, Vue, and JavaScript. I also have skills in graphic design, video editing, and digital marketing. I have successfully completed many projects for clients from different countries and industries, such as e-commerce, education, health, entertainment, and more. I always deliver high-quality work on time and within budget. I communicate effectively with my clients and provide regular updates on the progress of the project. I am also open to feedback and suggestions to ensure the best results. If you are looking for a reliable, creative, and skilled full-stack developer, then I am the right person for you. I would love to work with you and help you achieve your goals. Please contact me to discuss your project details and requirements. I look forward to hearing from you soon. Thank you for your consideration.
    vsuc_fltilesrefresh_TrophyIcon Netty
    Plugin Development
    Plugin Customization
    WordPress Theme
    Web Design
    Full-Stack Development
    Apache HTTP Server
    Web Application
    Web Development
    MySQL
    WordPress Plugin
    PHP
    Website Development
    JavaScript
    Vue.js
    Laravel
  • $15 hourly

    • 5.0/5
    • (4 jobs)
    With 4 years of experience in Video Production, my core expertise lies in Premiere Pro, DaVinci Resolve, After Effects, Photoshop, and Adobe Audition. I take pride in providing exceptional services to clients worldwide, and if they are not satisfied, there is no charge. Additionally, I hold a Bachelor's degree in Computer Science from Al-Azhar University. Skills: - Proficient in DaVinci Resolve and Premiere Pro (4 years) with experience in video editing and composing for complex projects. - Skilled in After Effects (2 years) with a focus on Graphic Design, specializing in creating professional intros. - Extensive experience in Adobe Audition (5 years), involving extensive editing of audio files.
    vsuc_fltilesrefresh_TrophyIcon Netty
    JetBrains IntelliJ IDEA
    Arabic
    CSS
    Video Production
    Java
    JavaScript
    Audio Editing
    Video Post-Editing
    Video Editing
    Audio Post Production
    Adobe Premiere Pro
    HTML
    Adobe Photoshop
    Adobe After Effects
    Adobe Audition
  • $38 hourly

    • 4.9/5
    • (11 jobs)
    I got more than 20 years of solid experience in developing web & mobile applications as a full-stack developer and system architecture. I started coding with C/C++ in 1997-99 and gained a solid understanding of OS and networks. I've worked as a backend engineer with Java and PHP for more than 5 years and then as a full-stack engineer for more than 10 years. For the recent 10 years, I worked as a system architect and a senior engineer manager. I worked for different companies, from stealth startups to public listed companies. My web and mobile apps are built to run in production environments stable and scalable for many years. From these works, I possed a variety of business knowledge including city pipeline planning, auto navigation, video conferencing, e-commerce, health management, and insurance services. I would always keep delivering optimized and exceeding expectation quality system design and apps as my primary value. I would always take the performance and security of your solution as the most important value for your client's needs. I'm also a quick learner and open to different ideas. If you are looking for a high-quality web and mobile solution developer, I'm the one for you. As a responsible and mature engineer, I'm willing to keep a long-term technical involvement in my projects and happy to see these projects running smoothly and successfully in real life. Please allow me to be the best of service to you!
    vsuc_fltilesrefresh_TrophyIcon Netty
    Full-Stack Development
    DevOps
    Web Services Development
    ClickHouse
    MySQL Programming
    Embedded Linux
    Single Page Application Framework
    Spring Framework
    Spring Cloud
    Elasticsearch
    Couchbase Server
    Spring Boot
    Mobile App Development
    WeChat
    Web Application
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